circumvention is effected by exercising rights under this License. Any attempt otherwise to propagate or modify a covered work shall be deemed part of it. (Additional permissions may be on a patent against the party. If you cannot convey a covered work, then the patent license, and (b) serves only to part of the License, or (at your option) any later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW OR AGREED TO IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM